Resummation of boson-jet correlation at hadron colliders

• Published in: The journal of high energy physics Vol. 2019; no. 11; pp. 1 - 35
• Main Authors: Chien, Yang-Ting, Shao, Ding Yu, Wu, Bin
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2019; Springer Nature B.V; Springer Berlin; SpringerOpen
• Subjects: Accuracy; Classical and Quantum Gravitation; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Computer simulation; Effective Field Theories; Elementary Particles; Higgs bosons; High energy physics; Logarithms; Mathematical analysis; Perturbative QCD; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quarks; Radiation; Relativity Theory; Renormalization Group; Resummation; String Theory; Transverse momentum; Renormalization Group; Effective Field Theories; Resummation; Perturbative QCD
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP11(2019)025

A bstract We perform a precise calculation of the transverse momentum ( q → T ) distribution of the boson+jet system in boson production events. The boson can be either a photon, W , Z or Higgs boson with mass m V , and q → T is the sum of the transverse momenta of the boson and the leading jet with magnitude q T = | q → T | . Using renormalization group techniques and soft-collinear effective theory, we resum logarithms log ( Q/q T ) and log R at next-to- leading logarithmic accuracy including the non-global logarithms, where Q and R are respectively the hard scattering energy and the radius of the jet. Specifically, we investigate two scenarios of p T J ≲ m V or p T J ≳ m V in Z +jet events, and we examine the q T distributions with different jet radii and study the effect of non-global logarithms. In the end we compare our theoretical calculations with Monte Carlo simulations and data from the LHC.